Home / 74,054.08-102,193.76-40,520

Finding the Fourth Proportional to 74,054.08, 102,193.76 and 40,520

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Solution

The fourth proportional to 74,054.08, 102,193.76 and 40,520 is: 55,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,054.08 : 102,193.76 = 40,520 : x
  2. Step 2: Convert to fraction form
    74,054.08/102,193.76 = 40,520/x
  3. Step 3: Cross multiply
    74,054.08x = 102,193.76 × 40,520
  4. Step 4: Simplify right side
    74,054.08x = 4,140,891,155.20
  5. Step 5: Solve for x
    x = 4,140,891,155.20/74,054.08
  6. Step 6: Final answer
    x = 55,917.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.